linux-kernel - Re: [PATCH v8 1/3] drm/bridge: synopsys: Add DW HDMI QP TX Controller support library

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Message-ID: <hax2zu7wlpucxllqapc5dzjirvrkanxkzdxtd2shu3tlc53t3m@ctpcuxifl3ds>
Date: Mon, 30 Sep 2024 09:44:51 +0200
From: Maxime Ripard <mripard@...nel.org>
To: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Jonas Karlman <jonas@...boo.se>, 
	Jernej Skrabec <jernej.skrabec@...il.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, 
	Sandy Huang <hjc@...k-chips.com>, Heiko Stübner <heiko@...ech.de>, 
	Andy Yan <andy.yan@...k-chips.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Mark Yao <markyao0591@...il.com>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Simona Vetter <simona@...ll.ch>, Simona Vetter <simona.vetter@...ll.ch>, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org, 
	kernel@...labora.com, Alexandre ARNOUD <aarnoud@...com>, 
	Luis de Arquer <ldearquer@...il.com>, Algea Cao <algea.cao@...k-chips.com>
Subject: Re: [PATCH v8 1/3] drm/bridge: synopsys: Add DW HDMI QP TX
 Controller support library

On Sun, Sep 29, 2024 at 01:36:47AM GMT, Cristian Ciocaltea wrote:
> +static enum drm_mode_status
> +dw_hdmi_qp_bridge_mode_valid(struct drm_bridge *bridge,
> +			     const struct drm_display_info *info,
> +			     const struct drm_display_mode *mode)
> +{
> +	struct dw_hdmi_qp *hdmi = bridge->driver_private;
> +
> +	if (mode->clock > HDMI14_MAX_TMDSCLK / 1000) {
> +		dev_dbg(hdmi->dev, "Unsupported mode clock: %d\n", mode->clock);
> +		return MODE_CLOCK_HIGH;
> +	}

Similarly, you should use drm_hdmi_compute_mode_clock here, with RGB and 8bpc

Once fixed,
Reviewed-by: Maxime Ripard <mripard@...nel.org>

Maxime

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